There are potato casseroles that require peeling, boiling, mashing, and multiple steps. And then there are these Slow Cooker Flag Day Potatoes. With just four simple ingredients and a slow cooker, you can create a dish that is creamy, cheesy, and deeply satisfying. Frozen hash brown patties form the base, topped with a rich mixture of cream of chicken soup, sour cream, and cheddar cheese. The result is a comforting, crowd-pleasing side dish that is perfect for summer celebrations.
The beauty of this recipe lies in its simplicity. The frozen hash brown patties are the ultimate shortcut—no peeling, no chopping, no boiling. The cream of chicken soup and sour cream create a creamy, tangy base. The cheddar cheese adds bold, nutty flavor and a golden, bubbly topping.
Perfect for Flag Day, Fourth of July, potlucks, or any time you need an easy, crowd-pleasing side dish. Serve it alongside grilled burgers, hot dogs, barbecue chicken, or baked ham.
Why You’ll Love This Recipe
-
Only 4 simple ingredients
-
Set-it-and-forget-it slow cooker convenience
-
No peeling, chopping, or boiling potatoes
-
Creamy, cheesy, and satisfying
-
Perfect for summer celebrations and potlucks
-
Great for feeding a crowd
4-Ingredient Slow Cooker Flag Day Potatoes
Prep Time: 5 minutes | Cook Time: 4-5 hours on LOW or 2-3 hours on HIGH | Total Time:Approximately 4-5 hours
Yield: 6 servings
Ingredients
-
8 frozen hash brown patties (about 24 ounces total)
-
1 (10.5-ounce) can condensed cream of chicken soup
-
1 cup sour cream
-
2 cups shredded cheddar cheese, divided
Instructions
1. Prepare the Slow Cooker:
Spray the inside of a 4- to 6-quart slow cooker with nonstick cooking spray for easier cleanup.
2. Layer the Hash Browns:
Lay the frozen hash brown patties in the bottom of the slow cooker in an even layer. It is okay if they overlap a little; the key is that they are mostly in a single, flat layer at the bottom.
3. Make the Creamy Mixture:
In a medium bowl, stir together the condensed cream of chicken soup and sour cream until smooth. Stir 1½ cups of the shredded cheddar cheese into the soup and sour cream mixture until evenly combined.
4. Pour Over the Hash Browns:
Pour the cheesy mixture evenly over the frozen hash brown patties, spreading it gently with a spatula so most of the patties are covered.
5. Cook:
Cover the slow cooker with the lid. Cook on LOW for 4 to 5 hours, or on HIGH for 2 to 3 hours, until the potatoes are hot all the way through and the edges are bubbly. The patties will soften and turn into a creamy, casserole-style potato dish.
6. Add Remaining Cheese:
During the last 15 to 20 minutes of cooking time, sprinkle the remaining ½ cup of shredded cheddar cheese evenly over the top, then cover again just until the cheese is melted.
7. Serve:
Once cooked, turn the slow cooker to WARM. Gently scoop and serve the potatoes straight from the crock. For cleaner scoops, let the dish sit uncovered for about 10 minutes to set slightly before serving.
Recipe Notes & Pro Tips
Frozen Hash Brown Patties: Use plain, unflavored frozen hash brown patties. Do not thaw them before adding to the slow cooker. The patties will soften and break apart as they cook, creating a creamy casserole texture. Shredded frozen hash browns can be substituted; use about 24 ounces (6 cups) and spread evenly in the slow cooker.
Cream of Chicken Soup: Cream of chicken soup provides the savory base. Cream of mushroom or cream of celery soup can be substituted. Do not add water to the condensed soup.
Sour Cream: Full-fat sour cream provides the richest, creamiest texture. Low-fat sour cream can be used but may result in a slightly thinner casserole.
Cheddar Cheese: Sharp cheddar provides the boldest flavor. Mild cheddar can be used but will result in a less pronounced cheese taste. For best melting, shred the cheese from a block rather than using pre-shredded cheese (which contains anti-caking agents).
Add Green Onions (Optional): For a pop of color and freshness, sprinkle 2 tablespoons of sliced green onions over the top before serving.
Add Bacon (Optional): Cook 6 slices of bacon until crisp, then crumble. Sprinkle the bacon over the top along with the remaining cheese. The smoky, salty bacon adds another dimension of flavor.
Make It Spicy: Add ½ teaspoon of red pepper flakes or 1 teaspoon of Cajun seasoning to the sour cream mixture. Substitute pepper jack cheese for half of the cheddar.
Variations
Loaded Baked Potato Casserole: Add ½ cup of sliced green onions to the sour cream mixture. Top with additional green onions, crumbled bacon, and a dollop of sour cream before serving.
Ham and Cheddar Potato Casserole: Add 1½ cups of diced cooked ham to the slow cooker along with the hash browns. The ham adds savory protein and makes this a complete meal.
Broccoli Cheddar Potato Casserole: Add 2 cups of frozen chopped broccoli (thawed and drained) to the slow cooker along with the hash browns. The broccoli adds color, texture, and nutrition.
Jalapeño Popper Potato Casserole: Add ½ cup of pickled jalapeños (chopped) and 4 ounces of softened cream cheese to the sour cream mixture. Use a blend of cheddar and pepper jack cheese.
Mushroom and Swiss Potato Casserole:Substitute the cream of chicken soup with cream of mushroom soup. Use shredded Swiss cheese instead of cheddar. Add 8 ounces of sliced sautéed mushrooms.
Buffalo Chicken Potato Casserole: Add 2 cups of cooked shredded rotisserie chicken and ½ cup of buffalo sauce to the sour cream mixture. Use a blend of cheddar and blue cheese. Serve with ranch or blue cheese dressing.
Serving Suggestions
These creamy, cheesy potatoes are a versatile side dish that pairs beautifully with:
-
Grilled burgers, hot dogs, or brats
-
Barbecue chicken or ribs
-
Baked ham or roast turkey
-
Meatloaf or meatballs
-
Fried chicken or chicken tenders
For a complete summer meal, serve alongside:
-
Coleslaw or a green salad
-
Corn on the cob
-
Baked beans
-
Fresh fruit salad
Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to 5 days. The casserole will thicken as it cools, and the flavors will continue to meld.
To reheat, place individual portions in the microwave in 60-second bursts, or warm the entire casserole in a 350°F oven for 15-20 minutes, covered with foil to prevent the top from drying out. Add a splash of milk if the casserole seems dry.
This casserole freezes well for up to 3 months. Cool completely, then transfer to freezer-safe containers. Thaw overnight in the refrigerator before reheating.
Why This Recipe Works
This Flag Day Potatoes recipe is a brilliant example of using convenience foods to create something that tastes homemade. Frozen hash brown patties are the ultimate shortcut—they are already peeled, chopped, and par-cooked, so they become tender without any prep work. The combination of cream of chicken soup and sour cream creates a creamy, tangy base that is rich and flavorful. The cheddar cheese adds bold, nutty notes and a beautiful golden finish.
The slow cooker is the perfect vessel for this casserole because it allows the hash browns to cook slowly and evenly without burning or drying out. The sealed environment traps moisture, keeping the casserole creamy. Adding the remaining cheese at the end creates a stretchy, bubbly topping.
This recipe is proof that you do not need a long list of ingredients or complicated techniques to make a crowd-pleasing side dish. With four simple ingredients and a slow cooker, you can create a potato casserole that is creamy, cheesy, and perfect for summer celebrations. Great for Flag Day, Fourth of July, potlucks, or any time you need an easy, delicious side dish.